/Engine/Source/Runtime/Net/Core/Public/Net/Core/Misc/NetSubObjectRegistry.h
Keep track of replicated components and their subobject list
struct FReplicatedComponentInfo
UActorComponent...
Component
Component that will be replicated
FObjectKey
Key
Store the object key info for fast access later
ELifetimeCondit...
NetCondition
NetCondition of the component
FSubObjectRegis...
SubObjects
Collection of subobjects replicated with this component